948909 has 16 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 563136.

The previous prime is 948907. The next prime is 948929. The reversal of 948909 is 909849.

It is not a de Polignac number, because 948909 - 2¹ = 948907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (948901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁹⁴⁸⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

948909 is a deficient number, since it is larger than the sum of its proper divisors (462291).

948909 is a wasteful number, since it uses less digits than its factorization.

948909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 948909 is about 974.1196025130. The cubic root of 948909 is about 98.2671110833.

Subtracting from 948909 its reverse (909849), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 948909 in words is "nine hundred forty-eight thousand, nine hundred nine".